Spreadshirt Techcamp 2018 - Hold until Told

This document summarizes techniques for building scalable websites with Perl, including caching whole pages, chunks of HTML/data, and using job queuing. Caching helps performance by reducing workload and scalability by lowering database load. Large sites like Yahoo cache aggressively. Job queuing prevents overloading resources and keeps websites responsive under high demand by lining requests up in a queue.

You know that performance is crucial to your company's success, but do the people in the corner office know this? You need to get the message across using the language they speak and targeting the goals they care about. This session -- presented by Strangeloop president Joshua Bixby at the 2011 Web Performance Summit -- summarizes the benefits of a faster website or web app, then delves into a series of how-tos for creating a business case for web performance in your organization.

WordPress search customization is a topic we at Seravo get asked about on a frequent basis. There are many different ways to customize the search, and customers understandably want to learn the best practices. The search can be customized quite easily with small changes on PHP code level, and by utilizing MariaDB database’s built-in search functionality. You can also choose a more robust way to do this, and build a new ElasticSearch server just for your case. These slides are from the webinar on January 14th, 2021: https://seravo.com/blog/webinar-search-function-and-how-to-customize-it/

Slides for my "Caching the uncacheable with Varnish" presentation at DevDays 2021. See https://feryn.eu/speaking/caching-uncacheable-varnish-devdays-2021/ for more information

The document discusses various techniques for caching websites to improve performance. It covers full page caching plugins like WP Super Cache and W3 Total Cache. It also discusses ways to optimize web servers like Apache and Nginx, speed up PHP parsing, use memcache for generic data storage, implement opcode caching, and do fragment caching. The goal of these caching techniques is to serve cached static content instead of dynamically generating pages each time to improve load times and server efficiency.

by @thoaud from WordCamp Nordic 2019. Introduction to The Performance First Workflow in WordPress.

This document summarizes an introduction to profiling presentation. It discusses using the cProfile module to generate profile data and analyze it using tools like pstats. It also discusses using the results to identify bottlenecks by looking at exclusive time functions or walking down the call graph from inclusive time functions. Common optimizations mentioned include removing unnecessary work, using more efficient algorithms, batching I/O operations, database and SQL tuning, caching, and reducing code complexity.

Modern progressive web applications are complex pieces of software running in the browser. Fastly offers unparalleled control over the way the bytes fly from your servers to the user, enabling many of the features of advanced progressive web apps to truly shine. This talk will show how these latest web technologies can best take advantage of smarts in the network to deliver your web app at top speed.

The document discusses composing reusable extract-transform-load (ETL) processes on Hadoop. It covers the data science lifecycle of acquiring, analyzing and taking action on data. It states that 80% of work in data science is spent on acquiring and preparing data. The document then discusses using Cascading, an abstraction framework for building MapReduce jobs, to create reusable ETL processes that are linearly scalable and follow a single-purpose composable design.

It's easy to improve the speed of your Joomla website. Just follow the tips & tricks of this presentation about Site Performance Optimization. These are the slides used during the Joomla World Conference 2013 in Boston #jwc13

The document discusses techniques for improving web performance, including reducing time to first byte, using content delivery networks and HTTP compression, caching resources, keeping connections alive and reducing request sizes. It also covers optimizing images, loading JavaScript asynchronously to avoid blocking, and prefetching content. The overall goal is to reduce page load times and improve user experience.

The slides for my presentation at the March meeting of Boston ruby group on http proxy caching using rack middlware. Code is at github.com/acorncache/acorn-cache

The document provides techniques and tools for improving web performance. It discusses how reducing response times can directly impact revenues and user experience. It then covers various ways to optimize the frontend, including reducing time to first byte through DNS optimization and caching, using content delivery networks, HTTP compression, keeping connections alive, parallel downloads, and prefetching. It also discusses optimizing images, JavaScript loading, and introducing new formats like WebP. The overall document aims to educate on measuring and enhancing web performance.

I gave this talk on 4/27/11 at the Boston PHP Meetup Group. It covers both server side and client side optimizations, as well as monitoring tools and techniques.

The document discusses caching strategies for REST services using HTTP. It explains the different states a resource representation can be in (up-to-date, fresh, stale) and caching directives like Cache-Control headers, expiration dates, and ETags that control caching and cache validation. Optimistic locking using ETags, If-Match, and If-None-Match is described as a way to handle concurrent data changes in a RESTful manner without transactions.

The document discusses connecting Android applications to web services using HTTP, XML, JSON, and OAuth. It covers using the HttpClient API to make HTTP requests, parsing responses in XML and JSON formats, and obtaining access tokens from services using OAuth authentication. The document also recommends libraries for tasks like XML/JSON processing and provides examples of client libraries that connect to specific web services.

WordPress performance can be improved by optimizing rendering speed and processing speed. Rendering speed focuses on front-end optimizations like minimizing page size through image optimization and concatenating/minifying scripts and stylesheets. Processing speed focuses on back-end optimizations like caching, using a CDN, adding expire headers, and leveraging reverse proxies and caching plugins. Nginx can be configured for caching, gzip compression, and load balancing to improve WordPress performance.

Traditionally, content delivery networks (CDNs) were known to accelerate static content. Amazon CloudFront has come a long way and now supports delivery of entire websites that include dynamic and static content. In this session, we introduce you to CloudFront’s dynamic delivery features that help improve the performance, scalability, and availability of your website while helping you lower your costs. We talk about architectural patterns such as SSL termination, close proximity connection termination, origin offload with keep-alive connections, and last-mile latency improvement. Also learn how to take advantage of Amazon Route 53's health check, automatic failover, and latency-based routing to build highly available web apps on AWS.